53555832749 has 2 divisors, whose sum is σ = 53555832750. Its totient is φ = 53555832748.

The previous prime is 53555832709. The next prime is 53555832809. The reversal of 53555832749 is 94723855535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47124594724 + 6431238025 = 217082^2 + 80195^2 .

It is a cyclic number.

It is not a de Polignac number, because 53555832749 - 2³² = 49260865453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53555832694 and 53555832703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53555832709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26777916374 + 26777916375.

It is an arithmetic number, because the mean of its divisors is an integer number (26777916375).

Almost surely, 2^53555832749 is an apocalyptic number.

It is an amenable number.

53555832749 is a deficient number, since it is larger than the sum of its proper divisors (1).

53555832749 is an equidigital number, since it uses as much as digits as its factorization.

53555832749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680000, while the sum is 56.

The spelling of 53555832749 in words is "fifty-three billion, five hundred fifty-five million, eight hundred thirty-two thousand, seven hundred forty-nine".